Breakfast is the (19) ______ important meal of the day. It provides the nutrients your body needs for good health, the calories it needs for (20) ______ and helps to maintain your blood sugar level. Studies have shown that people who don’t have breakfast have a low blood sugar level and are often slow, tired, hungry and (21) ______ to concentrate. Surprisingly, breakfast actually plays a part in weight control. It's easier to (22) ______ weight if you eat in the morning rather than later in the day. Dividing the day’s calories into three meals helps take off weight more efficiently than skipping breakfast and having two larger meals a day does.
19. A. healthy B. tasty C. main D. most
20. A. strenght B. power C. energy D. effort
21. A. able B. enable C. unable D. capable
22. A. lose B. put C. gain D. drop